From my training, OL on your meter stands for Over Limit and it means that the measurement is beyond the range the meter can read. In industrial stuff we use a megohmeter or "megger" to test winding insulation of motors. These use much higher voltage (usually something around operating voltage) and can read the very high resistance between the insulation and ground. It's used to find failing winding insulation before it fails or to test an unknown motor for failure without just putting the full power to it in a live circuit.
@@hangfire5005 An ohm meter uses 9 volts to measure the resistance in the circuit. I use an insulation tester. This meter puts 600 volts through the circuit. Sometimes when there is a short in a circuit the voltage spikes up very high.
@@Outrunninaround. a megger reads in megaohms. 1 megaohm is 1,000,000 ohms. A good winding will usually max out b the meter, but lower readings don't necessarily mean a bad winding. Most places will have some minimum reading at which they will preemptively replace a motor. I think you may be mixing up the idea of winding insulation and winding resistance. We are talking here about the insulation and you test it between the winding wire and body of the motor. If you're measuring resistance through the winding leads you are seeing the wires resistance over it's length and this is mostly meaningless and doesn't tell you much unless it shows the windings to be open circuit
Thanks so much for cutting everything open to see the insides. It helps so much seeing the insides after a failure like that. I’m not a licensed HVAC technician but an old technician for manufacturing plants and sometimes I worked hand and hand with the HVAC guys when they were overloaded or needed help lifting the heavy equipment. I’m in New Jersey. 👍🏼
16:24 hey I’m a new level 3 member. I’ve 12 years of experience in residential hvac and electrical. I’m a small business owner licensed residential hvac in Mississippi. I don’t have any company experience but gain experience from knowing people in the industry and coming out and helping my on residential installation jobs. Your videos really help a lot and I’m glad I found you..
Cancel all your other HVAC youtube subscriptions, TAD is the only authority you need! He's the man! Very descriptive, very thorough, very honest. Thanks Tad, #giveaway
Capacitors usually die from heat, and so do compressors but the "enamel" coated wire used in the windings (actually formvar or other) can be killed by over-voltage transients. Otherwise known as nearby lightning strikes. A nearby (less than say a quarter mile) strike can hit power lines, or magnetically couple to power lines causing thousands of induced volts for a millisecond or so. Over time this can degrade insulation to the point where 240 volts will arc through causing a short, often to chassis. Sometimes you will measure a couple of Megohms of leakage resistance from the windings to chassis and wonder about it's health. This sometimes leads to condemning it, perhaps needlessly. But it may be an early warning that further compressor life may be limited. Over-voltage protection devices can help. These are typically metal oxide resister based, and are placed across the 240 ac. When voltage above a threshold is presented, they shunt most of the voltage, sometimes sacrificing themselves but saving your equipment.
Tadd your vids are helpful just got certified for AC 1, the knowledge you share with us i use at work and its been very helpful for someone like me. Thank you
For burnouts with acid test positive but replacing only compressor, I disassemble each piece of the system and clean each piece separately. I usually find quite a bit of oil that others leave and it can easily still damage the new system with a suction line dryer. I have come in after others had a second burnout and found it is the only way to ensure success if your continuing with the old cond. and evap. Takes a long time but has never failed me. I always find more oil in the accumulator on hp's every time. Have to remove them and dump it out.
Great video tad. Long time follower, journeyman commercial technician… i love seeing a good educational video. One can always learn something, don’t care how long you been in the field. Thank you 🙏🏾
Scroll Compressors should've been standard equipment on systems since 2008. They have fewer moving parts, are more efficient, and are more resistant to slugging.
@@davidperry4013 I have a 3 ton Copeland in a York that’s 40 yrs old and still sounds good. Treat them right and they can last Biggest issue now is the severe rust on the can, I’m expecting it to leak anytime now.
Talking about Terminal venting..the most common issue I have noticed is insecure wire connectors on the Terminal.this Will keep the Terminal arking and overheating which will eventually melt off the glass seal around the terminal
What is the problem with the Federal Pacific breaker box? One of the most prominent dangers of a Federal Pacific electrical panel is that the Stab-Lok breakers are prone to overheating and malfunctions. Current estimates predict that faulty circuits from a Federal Pacific panel are responsible for nearly 3,000 residential electrical fires every year.May 2, 2023
Good video. Minor note, OL on the meter means Open Line (throwback to telephone days) not Open Loop. Unless I missed it, whst was the solution you used for the FPE breaker?
What wire gauge (AWG) was running from the main service panel to the outdoor disconnect panel? To use a 100 amp circuit breaker in the service panel, you would need at minimum AWG2 THHN wire for such a run. That is extremely heavy duty wire that is normally not used for such a run. For a 35 amp sub panel, the minimum wire size is AWG8. Usually such a run is wired with an AWG6 or AWG8 wire. A 100 Amp breaker is too large to be used on a circuit that used AWG6 or AWG8 wire. Did you take this into account?
I'm pretty sure there was a 6 awg wire. I don't know what was going on with this, but I know back in the day. They did things a lot differently, then now
@@TaddyDigest yea, back in the 80's code was 50 or 60amps for #10 wire. i know. i installed 10 Ga whips back in the day for 5 tons. code inspected. They made the code stricter over the years. i started in 1981. about 25 years ago they dropped 10Ga to 30amps. was 50 or 60amps. We never had issues at 50 or 60. i think they had some issues with resistance heat though. Terminations melting at Lugs etc.
Another good one Taddy🤘🏽 If they did go with the compressor change out and follow all the steps, on the next visit out you install a pipe where that filter was would you go ahead and give the unit new refrigerant?
It's FPE, Fire Prone Equipment. that breaker is only a switch (and that's questionable at best.) To be fully Code compliant, the new disconnect must be rated to 100 amps, with the appropriate fuses for the condenser. Best option (and cheaper) install an outdoor 100a main lug subpanel with a breaker sized to the condenser.
I replced oil spided all chiller unit , cleaned out water from chiller flused out with nitrone replace dliquid line filter I did deeper vaccuen 500 micron but I did not good suctionline it was warn amps ok discharge line ok but suction line NO . chiller R 704 R. what is the problem?
You can stop at my house and see my 3 ton 1984 York “tabletop” condenser, I bought new when my house was built. Original Copeland compressor, original AO Smith fan motor, and two original capacitors. Fan has oil tubes however it must be slipped out to do so. I had proactively changed the contactor, that’s it. Unfortunately the compressor housing is so severely rusted I’m expecting it to leak at any point.
@@chatrkat older products stand the test of time. I got Rheems my dad put it 30yrs ago that have only been serviced once and that was in recent years, never cleaned until I had to come out and usually just bypass the built in delay. I never lie to my customers, any product you buy nowadays has 12-15yr life expectancy before repair costs set in. Planned obsolescence is the way of the world now.
If a unit lasted only 12 years then something wasn't done right the first time around.. my AC unit is almost 30 years old, still working. $7 grand is a joke
Sad that equipment prices havent really imcreased that much.....but the greed kf the industry has. I used to buy 2 ton splits w/5kw heatstrips for 1850 DELIVERED....THOSE SAME SYSTEMS with the new required 14.3 seer are 2400. An increase for sure but certainly not a doubling of price. Labor has increased a little but overall....its actually contractor greed.
Good vid ! FPE Lost thier licence because of those STAB-LOK Panels. i Hope You or someone checked that 100 amp breaker in that Stab-Lok panel. i Would Have an Electrician install a Smaller Breaker in that Panel ! Definitely Check the Bus Bar. it's Highly Doubt full that 100 Stab lok Bus bar survived that compressor meltdown. Those Stab loks Don't handle 40 amps let alone 100 amps. FPE Panel Should be Replaced With a decent panel. Major Fire Hazard. FPE Panels are Junk !!!
Most fluke clampmeters do not have a sensitive enough ohm function (10 million or higher) to find a compressor that is starting to go to ground. Fluke owns Amprobe...the original amp clamp meter company. Fieldpiece, Ideal, UEI, Sperry. I have owned all these brands. Fieldpiece and UEI are most durable. 8:13
![Seungmin "그렇게, 천천히, 우리(As we are)" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/kAzmhLHePqU/mqdefault.jpg)
From my training, OL on your meter stands for Over Limit and it means that the measurement is beyond the range the meter can read. In industrial stuff we use a megohmeter or "megger" to test winding insulation of motors. These use much higher voltage (usually something around operating voltage) and can read the very high resistance between the insulation and ground. It's used to find failing winding insulation before it fails or to test an unknown motor for failure without just putting the full power to it in a live circuit.
😱
@@hangfire5005 An ohm meter uses 9 volts to measure the resistance in the circuit. I use an insulation tester. This meter puts 600 volts through the circuit. Sometimes when there is a short in a circuit the voltage spikes up very high.
That’s the one that shows over 550ohms of winding is good? Then less than that if a short to ground is coming?
@@Outrunninaround. a megger reads in megaohms. 1 megaohm is 1,000,000 ohms. A good winding will usually max out b the meter, but lower readings don't necessarily mean a bad winding. Most places will have some minimum reading at which they will preemptively replace a motor. I think you may be mixing up the idea of winding insulation and winding resistance. We are talking here about the insulation and you test it between the winding wire and body of the motor. If you're measuring resistance through the winding leads you are seeing the wires resistance over it's length and this is mostly meaningless and doesn't tell you much unless it shows the windings to be open circuit
OL open line
Thanks so much for cutting everything open to see the insides. It helps so much seeing the insides after a failure like that. I’m not a licensed HVAC technician but an old technician for manufacturing plants and sometimes I worked hand and hand with the HVAC guys when they were overloaded or needed help lifting the heavy equipment. I’m in New Jersey. 👍🏼
16:24 hey I’m a new level 3 member. I’ve 12 years of experience in residential hvac and electrical. I’m a small business owner licensed residential hvac in Mississippi. I don’t have any company experience but gain experience from knowing people in the industry and coming out and helping my on residential installation jobs. Your videos really help a lot and I’m glad I found you..
Thank you for watching my brother.Here is my email.I have a bunch of guides.I'd love to send you
tadfuller1@gmail.com
Hi my name is William from Africa Ghana please give away
I'm an electrician not HVAC but I appreciate your ability to teach and your personal approach to your customers
Cancel all your other HVAC youtube subscriptions, TAD is the only authority you need! He's the man! Very descriptive, very thorough, very honest. Thanks Tad, #giveaway
You have very reasonable pricing. Thanks for the videos!
Heck that FPE stab loc load center needs to be changed out as its a fire hazard. Great video as well.
@@seangriffon6502 agreed! That panel needs to go definitely a fire hazard.
Capacitors usually die from heat, and so do compressors but the "enamel" coated wire used in the windings (actually formvar or other) can be killed by over-voltage transients. Otherwise known as nearby lightning strikes. A nearby (less than say a quarter mile) strike can hit power lines, or magnetically couple to power lines causing thousands of induced volts for a millisecond or so. Over time this can degrade insulation to the point where 240 volts will arc through causing a short, often to chassis. Sometimes you will measure a couple of Megohms of leakage resistance from the windings to chassis and wonder about it's health. This sometimes leads to condemning it, perhaps needlessly. But it may be an early warning that further compressor life may be limited. Over-voltage protection devices can help. These are typically metal oxide resister based, and are placed across the 240 ac. When voltage above a threshold is presented, they shunt most of the voltage, sometimes sacrificing themselves but saving your equipment.
In hvac, everyday is an adventure!
Tadd your vids are helpful just got certified for AC 1, the knowledge you share with us i use at work and its been very helpful for someone like me. Thank you
Compressor class has started! Thanks Tad.
For burnouts with acid test positive but replacing only compressor, I disassemble each piece of the system and clean each piece separately. I usually find quite a bit of oil that others leave and it can easily still damage the new system with a suction line dryer. I have come in after others had a second burnout and found it is the only way to ensure success if your continuing with the old cond. and evap. Takes a long time but has never failed me. I always find more oil in the accumulator on hp's every time. Have to remove them and dump it out.
Amazing work Taddy , System cleaning is the most important method we need to do before putting a new compressor in every cooling system.
Great job tad always learn from your videos thanks again
Thank you once again I appreciate your information
You are so welcome
Great video tad. Long time follower, journeyman commercial technician… i love seeing a good educational video. One can always learn something, don’t care how long you been in the field. Thank you 🙏🏾
Thank you for share good content with us.
Scroll Compressors should've been standard equipment on systems since 2008. They have fewer moving parts, are more efficient, and are more resistant to slugging.
@@davidperry4013 I have a 3 ton Copeland in a York that’s 40 yrs old and still sounds good. Treat them right and they can last Biggest issue now is the severe rust on the can, I’m expecting it to leak anytime now.
Talking about Terminal venting..the most common issue I have noticed is insecure wire connectors on the Terminal.this Will keep the Terminal arking and overheating which will eventually melt off the glass seal around the terminal
what is your opinion on soft start add on. did that unit have a hard start.
love soft starts this unit did not have a hard start
When you replace the liquid drier do you re use the gas?
Depends on the condition
What is the problem with the Federal Pacific breaker box?
One of the most prominent dangers of a Federal Pacific electrical panel is that the Stab-Lok breakers are prone to overheating and malfunctions. Current estimates predict that faulty circuits from a Federal Pacific panel are responsible for nearly 3,000 residential electrical fires every year.May 2, 2023
above - from the net.
Tadd's the best! ❤
thanks for this interesting pictures of insides and your explaining to this..:-) greets from Germany
Awsome!
Never know there are HH and suction line filter dryers! Also the acid test and the anti acid stuff.
another great vid dude. very informative and very interesting!
Would you need to change out txv? I know some have screens in them.
Oil is naturally clear to yellowish.....Good Job
Yes, thanks
I’ve been waiting for this video
Thank you Bro
You're welcome my brother
Great info!!!
Thanks 🙏
You’re welcome 😊
Nice work 😊
Thank you! Cheers!
Good video. Minor note, OL on the meter means Open Line (throwback to telephone days) not Open Loop. Unless I missed it, whst was the solution you used for the FPE breaker?
I wonder if that condenser fan had failed causing the super hot and high head condition that caused that catastrophic compressor failure?
it could have been the issue yes
What wire gauge (AWG) was running from the main service panel to the outdoor disconnect panel? To use a 100 amp circuit breaker in the service panel, you would need at minimum AWG2 THHN wire for such a run. That is extremely heavy duty wire that is normally not used for such a run. For a 35 amp sub panel, the minimum wire size is AWG8. Usually such a run is wired with an AWG6 or AWG8 wire. A 100 Amp breaker is too large to be used on a circuit that used AWG6 or AWG8 wire. Did you take this into account?
I'm pretty sure there was a 6 awg wire. I don't know what was going on with this, but I know back in the day. They did things a lot differently, then now
@@TaddyDigest yea, back in the 80's code was 50 or 60amps for #10 wire. i know. i installed 10 Ga whips back in the day for 5 tons. code inspected. They made the code stricter over the years.
i started in 1981. about 25 years ago they dropped 10Ga to 30amps. was 50 or 60amps. We never had issues at 50 or 60. i think they had some issues with resistance heat though. Terminations melting at Lugs etc.
Love it keeps coming thank you 🙏 😊
What Fluke model is that ?
393 FC
Did you leave the old A coil at the AHU?
This is a package unit. It's all in one!
Another good one Taddy🤘🏽
If they did go with the compressor change out and follow all the steps, on the next visit out you install a pipe where that filter was would you go ahead and give the unit new refrigerant?
I would replace a whole new line set, evaporator coil, condenser if there was acid in the system. I don't trust those flushes.
Great question yes that's a good idea
@@TaddyDigest Taddy! What's up brother? Love your videos! Keep them coming!
Having a breaker close to the load is always a good idea.
It's FPE, Fire Prone Equipment. that breaker is only a switch (and that's questionable at best.) To be fully Code compliant, the new disconnect must be rated to 100 amps, with the appropriate fuses for the condenser. Best option (and cheaper) install an outdoor 100a main lug subpanel with a breaker sized to the condenser.
Thanks for the info!
Why are package units in my area (3.5 ton), $12,000? It's a heat pump. That's what my neighbor just paid.
Thought you werent installing york anymore?
Why would you think that?
I thought I saw on some of your older videos you were getting leaky units on new installs or compressors that were doa....
15:11 Unit only lasted 12 years? Why so short life?
William and Darren are probably talking about R22 days for hours 😅
❤❤❤❤Excellent work ❤❤❤❤
Thank you so much 😀
I replced oil spided all chiller unit , cleaned out water from chiller flused out with nitrone
replace dliquid line filter I did deeper vaccuen 500 micron but I did not good suctionline it was warn amps ok discharge line ok
but suction line NO . chiller R 704 R. what is the problem?
I don't understand how to join the hvac tips for technicians
You don't have to join the tips for technicians. It's a playlist you can play.Launch all the videos for free
There’s your problem.. it’s a York
😂
agreed
You can stop at my house and see my 3 ton 1984 York “tabletop” condenser, I bought new when my house was built. Original Copeland compressor, original AO Smith fan motor, and two original capacitors. Fan has oil tubes however it must be slipped out to do so. I had proactively changed the contactor, that’s it.
Unfortunately the compressor housing is so severely rusted I’m expecting it to leak at any point.
@@chatrkat older products stand the test of time. I got Rheems my dad put it 30yrs ago that have only been serviced once and that was in recent years, never cleaned until I had to come out and usually just bypass the built in delay. I never lie to my customers, any product you buy nowadays has 12-15yr life expectancy before repair costs set in. Planned obsolescence is the way of the world now.
If a unit lasted only 12 years then something wasn't done right the first time around.. my AC unit is almost 30 years old, still working. $7 grand is a joke
Couldn’t it also have been a failed bearing?
ol is overload or overlimit. it just means your meter can't measure it, not that it isn't there. important distinction
Sad that equipment prices havent really imcreased that much.....but the greed kf the industry has. I used to buy 2 ton splits w/5kw heatstrips for 1850 DELIVERED....THOSE SAME SYSTEMS with the new required 14.3 seer are 2400. An increase for sure but certainly not a doubling of price. Labor has increased a little but overall....its actually contractor greed.
Good vid ! FPE Lost thier licence because of those STAB-LOK Panels. i Hope You or someone checked that 100 amp breaker in that Stab-Lok panel.
i Would Have an Electrician install a Smaller Breaker in that Panel ! Definitely Check the Bus Bar. it's Highly Doubt full that 100 Stab lok Bus bar survived that compressor meltdown. Those Stab loks Don't handle 40 amps let alone 100 amps. FPE Panel Should be Replaced With a decent panel. Major Fire Hazard.
FPE Panels are Junk !!!
FPE is All over the Net class action law suit , house fires , can't sell a house with Fpe panel. etc.
It looks like BP was drilling there.
Bad ass
Most fluke clampmeters do not have a sensitive enough ohm function (10 million or higher) to find a compressor that is starting to go to ground. Fluke owns Amprobe...the original amp clamp meter company. Fieldpiece, Ideal, UEI, Sperry. I have owned all these brands. Fieldpiece and UEI are most durable.
8:13
Why not replace the line set and indoor.coil..thats a bad burn out.. suffer the cost once, be done...
No going back changing driers etc...
Why would you install another York ??? 12 years is terrible !!! We hate York and never install them.
York & luxaire are awful
Suction lines drivers catch crap liquid line drivers catch moisture (and acid).
6:04 - No! Wait! Your going to pour oil all over your toes out of the two blow holes at that angle! O, rats! he didn't show that part.
You're so right.I did not show that, but I did.I poured it all over my shirt
Give away
You're entered into the giveaway
Giveaway
That kit sucks bad
The colour (English spelling) of the oil tells you all you need to know, the system is badly contaminated I bet that oil smelt awful
Carrier compressor are only junk and only last 4/6 years at the max
Junk crap😢😢😢
York sucks jeje